A demo version of the upcoming God Of War III will come bundled with the Blu-ray release of District 9, Sony has confirmed.

The movie/game hybrid will arrive in the US on December 29. Players can unlock a bonus making-of featurette about the game by completing the demo.

"Blu-ray functionality has long been a differentiator that separates the PS3 from other home entertainment systems," said Sony's Peter Dille.

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"Through this collaboration with Sony Pictures Home Entertainment, we're able to create a unique experience only available on the PS3 system that blends two of the most popular entertainment options available, watching District 9 and playing God of War III off the same disc."

The God Of War Collection, which contains remastered ports of the first two games, will also feature the demo. The compilation arrives in the US in November.

It is unconfirmed whether the UK version of District 9 will include the God Of War III demo. The full game is slated for release in 2010.